DE627072C - Circuit arrangement for telephone systems with several AEmtern in series - Google Patents

Description

GERMAN EMPIRE

ISSUED ON MARCH 7, 1936

REICH PATENT OFFICE

PATENT LETTERING

JVi 627072 CLASS 21 a ³ GROUP 57io

Addendum to patent 626

Patented in the German Empire on September 16, 1931 The main patent started on October 17, 1930.

The main patent relates to a circuit arrangement for telephone systems in which Connections are made across several consecutive offices and in which particular ones Devices such as amplifiers, surge transmitters or the like. In the established connection path be switched on.

When engaging the special facilities it is common, such as; with voice current amplifiers, required, too to switch on additional equipment, such as cable extensions.

These line extensions must therefore be used for every connecting line between the main and interim office. Since the number of connecting lines between main and intermediate office is proportionate large, on the other hand that between the intermediate

ao office and the sub-offices are relatively small, it can be useful for economic reasons appear, the line extensions. to be arranged in the node offices. This is a Advantage insofar as this reduces the number of additional facilities to be provided, the line extensions, can be better adapted to the actual traffic needs. But there is another advantage in it to see that one can adjust the lines so that one from the main office for each one Liaison line leading to the intermediate office only one line replica, d. H. for all these connecting lines with each other same line replicas, need to be provided, while otherwise depending on the subsequent various connecting lines leading to the sub-office, d. H. corresponding to the various line characteristics Must provide line replicas. In this case you can also use the Assign the line simulation to the amplifier.

According to the invention, this is achieved in that when there are several exchanges running connections when setting a connection device in an intermediate office to certain outputs of the Incentive to involve special facilities (amplifiers) in a main office and additional facilities (line extensions) are given in the intermediate office.

The invention is based on the exemplary embodiment shown in the drawing described in more detail. Shown

*) The patent seeker stated as the inventor:

Alfred Scheunert in Berlin-Siemensstadt.

and only the devices necessary to explain the concept of the invention are described.

For the exemplary embodiment, a connection is assumed from a subscriber of a " _{sub-office upstream of the intermediate office .K 1} to a subscriber" of the sub-office U ₄ ^ _{subordinate to the intermediate office JC 2} . The special facilities, the amplifiers, in the main office and additional facilities, the line extensions, in the intermediate office are switched on depending on the occupancy of a certain exit at the incoming end of the one leading from the main office // to the intermediate office. Connection line V £ ₂ .

As soon as the calling subscriber picks up his receiver, he is connected in a manner known per se, which is not of interest here, via his ao sub-office, the intermediate office K ₁ and the connection line VZl ₁ to the main office //, as described in the main patent. the first series of impulses sent by the subscriber by actuating his dial is set, the first voter, the GWI group selector, in the main office // to the decade corresponding to the selected digit, containing the lines in the desired traffic direction, in which he can freely choose the selects the connecting line VZ ₂ leading to the intermediate office Kz as freely accepted.

The second "series of impulses sent by the subscriber sets the voter GW II in the intermediate office K, g , to the decade corresponding to the dialed number, in which ... _{connecting lines leading to the sub-office £ / 4} are connected, and chooses freely --A free one of these lines, assuming the connecting line VL _1. The number current impulses are received in the main office by the relay / ₂ , which in impulses via its contacts zj i ₂ and 28.Z ₂ the alternating current source WQ ₂ the wires of the continuing connecting line VL ₂ is applied, so that corresponding current surges are emitted via this, which the following voters .and facilities in the intermediate office Ιζ _2. These .measures run in the usual manner known per se in voter systems and are there . are unnecessary to initiate the subject matter of the invention, not described. '

The. the number streams setting the voter GW H are simultaneously; transferred to one follower each in the main office T ^ d in the Zwischen.- · annt. Stepping mechanisms are assumed and shown here as followers in the exemplary embodiment; other devices, e.g. B. J relay selector can be used. The follower M ₂ in the main office // is controlled by the pulse relay J ₂ and the follower M ₂ in the intermediate office / C ₂ by the pulse relay J ₃ . Relay J ₂ picks up the number current surges and transfers them by pulsing the AC power source WQ ₂ over the line VL ₂ to the relay / ₃ in the intermediate office. First, the setting of the follower M ₂ in the main office will be described.

Corresponding to the number of pulses received by relay J ₂ , the follower ^ makes the same number of steps as the selector GWII. The switching arms of the follower M _{2 are switched on} by its rotary magnet D ₂ with the assistance of the relay B ₂ , whose circuit was already closed when the occupancy _{relay C 2} responded when the selector GWI was occupied via: earth at contact 54C ₂ , switching arm. 57, Winding of relay B ₂ , battery, earth. Relay B ₂ closes its contact 52 b ₂ and acts as a delay relay during the series of currents, while contact 51Z ₂ provides the circuit for the rotary magnet D ₂ , which is connected to earth at contact 51Z ₂ via this contact, Kentakt $ 6b _ä , winding of the rotary magnet Z> _{2 runs} to the battery, earth, closes and opens impulsively, whereby the switching arms 55, 57, and 58 of the follower M ₂ are advanced according to the impulses! His switching arm 58 reaches the contact "to which the relay A £ is connected!" Corresponding to the _{line selected for sub-office C7 4} and thereby prepares the circuit for the relay A £ . arrived, and the switching arm 57 has left its position in the first 'step and thereby separated the circuit of the relay B , which now drops after the end of the series of impulses. As a result, its contact 52 b _{2 has returned} to the rest position and the circuit for the rotary magnet D _2. The follower M ₂ is thus stopped, and the current impulses of the subsequent series of current impulses can no longer actuate its rotary magnet D _2.

In the meantime, follower M _{3 at} intermediate office K _{2 has been} hired in the same way.

According to the number of pulses transmitted to the relay / ₃ , the follower M ₃ also makes the same number of steps as the selector GWII. The switching operation of the switching arms of the idler M £ is carried out by the rotary magnet £> ₃ as' composed of relay B _3, the circuit is closed already in the response of the Belegungerelais C ₃ in the occupancy of the selector GW Il

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was via: earth at contact 154.C ₃ , switching arm 157, winding of relay B ₃ , battery, earth. Relay B ₃ closes its contact 152 b ₃ and acts as a delay relay during the surge series, while contact 151/3 controls the circuit for the rotary magnet O ₃ , which is connected to earth at contact 151/3 via this contact, contact 158 b ₃ , winding of the Rotary magnet D _{3 runs} to battery, earth, closes and opens pulsed, whereby the switching arms 155, 157 and 158 of the follower M ₃ are advanced according to the pulses.

His Schaltann 158 reaches the contact to which the relay A _{i0 is} connected, corresponding to the line selected for sub-office £ 7 ₄ and thereby prepares the circuit for the relay A _i0 . The switching arm 155 of the follower M ₃ has reached the contact segment 156, and the switching arm 157 has left its position in the first step and thus separated the circuit of the relay B ₃ , which after. Termination of the series of current impulses now drops. As a result, its contact 152O _{3 has returned} to the rest position and the circuit for the rotary magnet O _{3 is} interrupted. The follower M ₃ is thus stopped, and the current surges of the following series of numbered current impulses can no longer operate its rotary magnet D _3.

In the meantime, the voter OWII has the connecting line VZ leading to the sub-office £ / _{4, which has been accepted as free. 4 was} found, and according to the further series of current impulses sent by the participant, the voters in the sub-office (Z _{4) were} set and the connection to the desired participant was completed in a known manner.

When the arms of the selector QW ΪΙ come into contact with the contacts of the line VU ₄ , the test relay P ₂ in the main office in series with the occupancy _{relay C 3} in the intermediate office K ₂ is activated. Relay P ₂ closes at his

♦ 5 contact 67 ^ ₂ its high-impedance winding II short, whereby the connection line VZ ₄ is blocked against further assignment in a known manner, and finally also at its contact 59 ^ ₂ the circuit for the relay ^ 4 ₄ ', which is from earth at the contact 55 c _{2 runs} through this, the contact 59 p ₂ , switching arm 58, winding of the relay A £ to battery, earth.

Relay A £ operates its contacts and, by closing contacts 64.O ₄ 'and 65 ^ ₄ ', switches the line simulation NL ^ for the outgoing speech direction to the amplifier Vst .

When the test relay P ₂ responded, relay C ₃ in the group selector GWII in the intermediate office KZ also responded and at his.

Contact 159 C ₃ via arm 158 closed the circuit for relay A _m . Relay A _i0 actuates its contacts and connects the line extension LV ₁ to the connection line VZ _{4 by closing contacts 160 A 40} to 163Ia ₄₀ .

By simultaneously closing its contact 66 / Z ₄ ', the circuit for the relays A ₂ , E -ind T was closed, which now respond more and operate their contacts in the manner described in the main patent, thereby switching on the facilities for this connection in the incoming speech direction will.

At the same time, relay / ^{7 has switched} on via its contact 29 / the selector VW, of which only the switching arms and bank contacts are shown, in a manner known per se, which now selects a free amplifier Vst and furthermore at its contact 30 / the circuit for the Relay U prepared.

As soon as the voter VW has found the accepted free amplifier Vst , the relay U is activated, which at its contacts 23 α to 26 « connects the amplifier Vst between the incoming end of the incoming connecting line VL ₁ and the outgoing end of the continuing connecting line VZ ₂ turns on in the main office. The speech connection now runs via the amplifier Vst, and the line simulation LN ± in the main office and the line extension LV ± in the intermediate office, which is suitable for this connection in the outgoing speech direction, is connected.

The established connection is triggered in a known manner and is initiated by hanging up the handset on the part of the calling subscriber and the resulting drop in the first occupancy relay C ₁ , which brings about the return of the entire facilities to the rest position.

According to a feature of the invention, the connecting lines running between the main office and the intermediate office can now be adjusted so that only one line replica needs to be provided for each connection line leading from the main office to the intermediate office, i.e. for all these connecting lines identical line replicas. _{Accordingly, one can replace the synchronously controlled follower ^ i 2} in the main office, which determines the connection of the line replicas in the main office, by a voter with free choice, who then only selects a free line replica of the same.

Likewise one can in this Ealle die Assign line replicas in the main office to the amplifiers, if the follower or the voter with free

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Choice completely · no longer applies; "The closing of the circuit for the relays F, E etc. is then effected, for example, by relays which are to be provided for this purpose or which are already used for other purposes.

Claims (1)

Claims: " i. Circuit arrangement for telephone systems with several in series Offices in which special amplifier devices are only required for certain connections in the .'Verbindungsweg be switched on, in accordance with the patent 626 047, characterized in that in the case of connections running over several exchanges when one is set Connection establishment in an intermediate office on certain outputs of the incentive 2o "for the involvement of special facilities (Repeater) in a main office and additional facilities (line extensions) is given in an interim office. - 2. Circuit arrangement according to claim x, characterized in that both the outgoing end of the connection line in the main office and the connection paths in the intermediate office switching devices (M ₂ , M ₃ ) are assigned which, when a certain direction of traffic is present, the activation of the special devices (amplifiers) in the main office and the "additional facilities (line extensions) in the intermediate office. 3. Circuit arrangement according to claim 2, characterized in that the switch-on - Provision of special and additional facilities (Vst and LV) by followers. (M ₂ , M ₃ ) takes place, which are set synchronously by the Nxunmernstromimpulses determining the traffic direction and which control the switching means (A ₄ !, A _t0 ) which bring about the connection of the devices. 4. Circuit arrangement according to claim 2, characterized in that the activation of the "special facilities (Vst) by voters with free choice and the activation of the additional facilities (LV) by the number . Current impulses synchronously set followers takes place, the switching means (A ^ and Ai ₀ ) causing the connection of the devices being controlled by the voters with free choice and the followers. 5. Circuit arrangement according to claim 2, characterized in that the switching on of the special devices (Vst) takes place by relays and the switching on of the additional devices (LV) by followers set synchronously by the number current surges, the switching means (A ^ and A _i0 ) can be controlled by the relay and the followers. For this purpose ι sheet of drawings